9. Percy's near death experience in the arch

Percy, Annabeth, and Grover were on an arch.  They were about to go in the elevator when they realized that there was not enough room in it, so Percy stayed behind.  A lady approached him with a Chihuahua.  When the lady smiled, Percy saw fangs. She didn’t have skin, but scales.  Before they had a chance to enter the incoming elevator, the lady turned into Echidna, a monstrous snake woman with a human head and snake-like body.  She had a forked tongue, vicious fangs, green scaly skin and the eyes of a reptile.  She started attacking Percy.  They fought for a long time on the arch.  The Chihuahua turned into a Chimera, a vicious creature.  The Chimera poisoned Percy, and although he tried to fight back his blade fell into the river below. Echidna said to Percy that if Percy was really the son Poseidon, he would jump into the water to retrieve his weapon, and that the gods would protect him.  Percy was nervous but did so anyway.  Thankfully he was okay.  When he ascended from the water, he was completely dry.